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26,239
RESULTS

Media Type
21,783
texts
1,616
movies
1,408
audio
1,024
images
138
software
117
data
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Availability
24,729
Always Available
1,135
Available to Borrow
375
Waitlist
Year
340
2018
573
2017
1,097
2016
1,227
2015
1,226
2014
450
2013
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Topics & Subjects
4,966
NASA Technical Reports Server (NTRS)
4,392
Astronomy
2,745
Astrophysics
1,817
DTIC Archive
1,751
astronomy
1,045
ASTRONOMY
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Collection
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Creator
4,966
nasa technical reports server (ntrs)
1,817
defense technical information center
599
eric
355
nasa
183
netradiosa
181
american museum of natural history
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Language
17,763
English
416
French
390
German
296
Italian
262
Latin
183
Afrikaans
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